Overrides for CR params at Restore time

[rooftopcellist]

Is your feature request related to a problem? Please describe.

There are many parameters that one might want to tweak on the Galaxy custom resource when restoring from a backup.

Currently the only way to achieve this would be to run a pod, mount the backup, edit the backup files directly, then terminate that pod and run a restore. This is cumbersome.

Describe the solution you'd like
We should make it possible to override galaxy.spec parameters on the new custom resource created during the restore role.

Additional context

cc @kurokobo This may be useful for the awx-on-k3s roles if you ever want to restore with a deployment_name different from the original deployment, because with pre-created hostMount volumes I think you need to change the *_storage_class params to use the new pvc.

• file_storage_storage_class
• postgres_storage_class
• redis_storage_class